Andrey Antukh 8510daef52
🐛 Restrict the team invitation token and list to admins (#12892)
* 🐛 Restrict the team invitation token and list to admins

The token of a team invitation is a bearer credential: whoever holds it
accepts the invitation with the role of the invitation row. The RPC that
mints it only required edition permissions, while the rest of the
invitation commands require admin, so a team editor could get the token of
any pending invitation, including the ones that grant the owner role.

The token now requires admin, and the token of an owner invitation is
restricted to the team owner: an admin cannot create nor promote an owner
invitation, so it cannot keep its token either. It reuses the error code
already used for that rule.

Minting the token now leaves an audit event named as an action, carrying
the granted role and the id of the invitation, so the extraction does not
go unnoticed.

The list of pending invitations is admin only as well: it carries the
email of the invited person and the role offered, and the dashboard was
painting those emails to any member. The frontend catches the permission
error and shows the permission notice instead, and the copy action is not
offered for an owner invitation, which the backend rejects for an admin.

The five invitation commands now answer with the same permission error,
so they speak one language.

Relates to GHSA-4mmc-j8rh-74pf

AI-assisted-by: minimax-m3.1-flash

* 🐛 Clear the cached invitations and gate the list on team admin

The pending invitations are a team admin only list. The dashboard still
offered the entry to every member and keyed the section on the invite
policy of the organization, so a team admin blocked by that policy saw
the no-permission notice although the backend lets them list.

- `fetch-invitations` answers a denied refetch with an
  `invitations-fetched` event carrying an empty list, so a demoted admin
  does not keep the cached emails and the header no longer paints the
  invite button from a stale list.
- The header tabs and the team options dropdown hide the invitations
  entry without `:is-admin`, which already includes the team owner.
- `invitations-section-content` keys the section on `:is-admin`, and the
  invite policy only gates the invite actions: resending keeps the
  `can-invite?` check, deleting and row selection only need team admin.

AI-assisted-by: deepseek-v4.1-flash
2026-11-10 15:53:43 +01:00
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